diff options
Diffstat (limited to 'gr-audio/examples/python')
| -rw-r--r-- | gr-audio/examples/python/.gitignore | 4 | ||||
| -rw-r--r-- | gr-audio/examples/python/Makefile.am | 38 | ||||
| -rwxr-xr-x | gr-audio/examples/python/audio_copy.py | 64 | ||||
| -rwxr-xr-x | gr-audio/examples/python/audio_fft.py | 138 | ||||
| -rwxr-xr-x | gr-audio/examples/python/audio_play.py | 57 | ||||
| -rwxr-xr-x | gr-audio/examples/python/audio_to_file.py | 63 | ||||
| -rwxr-xr-x | gr-audio/examples/python/dial_tone.py | 57 | ||||
| -rwxr-xr-x | gr-audio/examples/python/dial_tone_daemon.py | 57 | ||||
| -rwxr-xr-x | gr-audio/examples/python/dial_tone_wav.py | 61 | ||||
| -rwxr-xr-x | gr-audio/examples/python/mono_tone.py | 66 | ||||
| -rwxr-xr-x | gr-audio/examples/python/multi_tone.py | 90 | ||||
| -rwxr-xr-x | gr-audio/examples/python/noise.py | 55 | ||||
| -rwxr-xr-x | gr-audio/examples/python/spectrum_inversion.py | 68 | ||||
| -rwxr-xr-x | gr-audio/examples/python/test_resampler.py | 66 |
14 files changed, 884 insertions, 0 deletions
diff --git a/gr-audio/examples/python/.gitignore b/gr-audio/examples/python/.gitignore new file mode 100644 index 000000000..b4813f3c8 --- /dev/null +++ b/gr-audio/examples/python/.gitignore @@ -0,0 +1,4 @@ +/Makefile +/Makefile.in +/*.pyc +/*.pyo diff --git a/gr-audio/examples/python/Makefile.am b/gr-audio/examples/python/Makefile.am new file mode 100644 index 000000000..356b51559 --- /dev/null +++ b/gr-audio/examples/python/Makefile.am @@ -0,0 +1,38 @@ +# +# Copyright 2004,2009 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +include $(top_srcdir)/Makefile.common + +ourdatadir = $(exampledir)/audio + +dist_ourdata_SCRIPTS = \ + audio_copy.py \ + audio_fft.py \ + audio_play.py \ + audio_to_file.py \ + dial_tone.py \ + dial_tone_daemon.py \ + dial_tone_wav.py \ + mono_tone.py \ + multi_tone.py \ + noise.py \ + spectrum_inversion.py \ + test_resampler.py diff --git a/gr-audio/examples/python/audio_copy.py b/gr-audio/examples/python/audio_copy.py new file mode 100755 index 000000000..3094c9f7a --- /dev/null +++ b/gr-audio/examples/python/audio_copy.py @@ -0,0 +1,64 @@ +#!/usr/bin/env python +# +# Copyright 2004,2005,2007 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr +from gnuradio import audio +from gnuradio.eng_option import eng_option +from optparse import OptionParser + +class my_top_block(gr.top_block): + + def __init__(self): + gr.top_block.__init__(self) + + parser = OptionParser(option_class=eng_option) + parser.add_option("-I", "--audio-input", type="string", default="", + help="pcm input device name. E.g., hw:0,0 or /dev/dsp") + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm output device name. E.g., hw:0,0 or /dev/dsp") + parser.add_option("-r", "--sample-rate", type="eng_float", default=48000, + help="set sample rate to RATE (48000)") + (options, args) = parser.parse_args () + if len(args) != 0: + parser.print_help() + raise SystemExit, 1 + + sample_rate = int(options.sample_rate) + src = audio.source (sample_rate, options.audio_input) + dst = audio.sink (sample_rate, options.audio_output) + + # Determine the maximum number of outputs on the source and + # maximum number of inputs on the sink, then connect together + # the most channels we can without overlap + nchan = min (src.output_signature().max_streams(), + dst.input_signature().max_streams()) + + for i in range (nchan): + self.connect ((src, i), (dst, i)) + + +if __name__ == '__main__': + try: + my_top_block().run() + except KeyboardInterrupt: + pass + diff --git a/gr-audio/examples/python/audio_fft.py b/gr-audio/examples/python/audio_fft.py new file mode 100755 index 000000000..960e0f94d --- /dev/null +++ b/gr-audio/examples/python/audio_fft.py @@ -0,0 +1,138 @@ +#!/usr/bin/env python +# +# Copyright 2004,2005,2007 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, gru, audio +from gnuradio import eng_notation +from gnuradio.eng_option import eng_option +from gnuradio.wxgui import stdgui2, fftsink2, waterfallsink2, scopesink2, form, slider +from optparse import OptionParser +import wx +import sys + +class app_top_block(stdgui2.std_top_block): + def __init__(self, frame, panel, vbox, argv): + stdgui2.std_top_block.__init__(self, frame, panel, vbox, argv) + + self.frame = frame + self.panel = panel + + parser = OptionParser(option_class=eng_option) + parser.add_option("-W", "--waterfall", action="store_true", default=False, + help="Enable waterfall display") + parser.add_option("-S", "--oscilloscope", action="store_true", default=False, + help="Enable oscilloscope display") + parser.add_option("-I", "--audio-input", type="string", default="", + help="pcm input device name. E.g., hw:0,0 or /dev/dsp") + parser.add_option("-r", "--sample-rate", type="eng_float", default=48000, + help="set sample rate to RATE (48000)") + + (options, args) = parser.parse_args() + sample_rate = int(options.sample_rate) + + if len(args) != 0: + parser.print_help() + sys.exit(1) + + self.show_debug_info = True + + # build the graph + if options.waterfall: + self.scope = \ + waterfallsink2.waterfall_sink_f (panel, fft_size=1024, sample_rate=sample_rate) + elif options.oscilloscope: + self.scope = scopesink2.scope_sink_f(panel, sample_rate=sample_rate) + else: + self.scope = fftsink2.fft_sink_f (panel, fft_size=1024, sample_rate=sample_rate, fft_rate=30, + ref_scale=1.0, ref_level=0, y_divs=12) + + self.src = audio.source (sample_rate, options.audio_input) + + self.connect(self.src, self.scope) + + self._build_gui(vbox) + + # set initial values + + def _set_status_msg(self, msg): + self.frame.GetStatusBar().SetStatusText(msg, 0) + + def _build_gui(self, vbox): + + def _form_set_freq(kv): + return self.set_freq(kv['freq']) + + vbox.Add(self.scope.win, 10, wx.EXPAND) + + #self._build_subpanel(vbox) + + def _build_subpanel(self, vbox_arg): + # build a secondary information panel (sometimes hidden) + + # FIXME figure out how to have this be a subpanel that is always + # created, but has its visibility controlled by foo.Show(True/False) + + def _form_set_decim(kv): + return self.set_decim(kv['decim']) + + if not(self.show_debug_info): + return + + panel = self.panel + vbox = vbox_arg + myform = self.myform + + #panel = wx.Panel(self.panel, -1) + #vbox = wx.BoxSizer(wx.VERTICAL) + + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((5,0), 0) + + myform['decim'] = form.int_field( + parent=panel, sizer=hbox, label="Decim", + callback=myform.check_input_and_call(_form_set_decim, self._set_status_msg)) + + hbox.Add((5,0), 1) + myform['fs@usb'] = form.static_float_field( + parent=panel, sizer=hbox, label="Fs@USB") + + hbox.Add((5,0), 1) + myform['dbname'] = form.static_text_field( + parent=panel, sizer=hbox) + + hbox.Add((5,0), 1) + myform['baseband'] = form.static_float_field( + parent=panel, sizer=hbox, label="Analog BB") + + hbox.Add((5,0), 1) + myform['ddc'] = form.static_float_field( + parent=panel, sizer=hbox, label="DDC") + + hbox.Add((5,0), 0) + vbox.Add(hbox, 0, wx.EXPAND) + + +def main (): + app = stdgui2.stdapp(app_top_block, "Audio FFT", nstatus=1) + app.MainLoop() + +if __name__ == '__main__': + main () diff --git a/gr-audio/examples/python/audio_play.py b/gr-audio/examples/python/audio_play.py new file mode 100755 index 000000000..f9520c7cf --- /dev/null +++ b/gr-audio/examples/python/audio_play.py @@ -0,0 +1,57 @@ +#!/usr/bin/env python +# +# Copyright 2004,2005,2007 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr +from gnuradio import audio +from gnuradio.eng_option import eng_option +from optparse import OptionParser + + +class my_top_block(gr.top_block): + + def __init__(self): + gr.top_block.__init__(self) + + parser = OptionParser(option_class=eng_option) + parser.add_option("-F", "--filename", type="string", default="audio.dat", + help="read input from FILE") + parser.add_option("-r", "--sample-rate", type="eng_float", default=48000, + help="set sample rate to RATE (48000)") + parser.add_option("-R", "--repeat", action="store_true", default=False) + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm output device name. E.g., hw:0,0 or /dev/dsp") + (options, args) = parser.parse_args() + if len(args) != 0: + parser.print_help() + raise SystemExit, 1 + + sample_rate = int(options.sample_rate) + src = gr.file_source (gr.sizeof_float, options.filename, options.repeat) + dst = audio.sink (sample_rate, options.audio_output) + self.connect(src, dst) + + +if __name__ == '__main__': + try: + my_top_block().run() + except KeyboardInterrupt: + pass diff --git a/gr-audio/examples/python/audio_to_file.py b/gr-audio/examples/python/audio_to_file.py new file mode 100755 index 000000000..0d54f7bd2 --- /dev/null +++ b/gr-audio/examples/python/audio_to_file.py @@ -0,0 +1,63 @@ +#!/usr/bin/env python +# +# Copyright 2004,2007 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr +from gnuradio import audio +from gnuradio.eng_option import eng_option +from optparse import OptionParser + +class my_top_block(gr.top_block): + + def __init__(self): + gr.top_block.__init__(self) + + usage="%prog: [options] output_filename" + parser = OptionParser(option_class=eng_option, usage=usage) + parser.add_option("-I", "--audio-input", type="string", default="", + help="pcm input device name. E.g., hw:0,0 or /dev/dsp") + parser.add_option("-r", "--sample-rate", type="eng_float", default=48000, + help="set sample rate to RATE (48000)") + parser.add_option("-N", "--nsamples", type="eng_float", default=None, + help="number of samples to collect [default=+inf]") + + (options, args) = parser.parse_args () + if len(args) != 1: + parser.print_help() + raise SystemExit, 1 + filename = args[0] + + sample_rate = int(options.sample_rate) + src = audio.source (sample_rate, options.audio_input) + dst = gr.file_sink (gr.sizeof_float, filename) + + if options.nsamples is None: + self.connect((src, 0), dst) + else: + head = gr.head(gr.sizeof_float, int(options.nsamples)) + self.connect((src, 0), head, dst) + + +if __name__ == '__main__': + try: + my_top_block().run() + except KeyboardInterrupt: + pass diff --git a/gr-audio/examples/python/dial_tone.py b/gr-audio/examples/python/dial_tone.py new file mode 100755 index 000000000..65c5e50b2 --- /dev/null +++ b/gr-audio/examples/python/dial_tone.py @@ -0,0 +1,57 @@ +#!/usr/bin/env python +# +# Copyright 2004,2005,2007 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr +from gnuradio import audio +from gnuradio.eng_option import eng_option +from optparse import OptionParser + +class my_top_block(gr.top_block): + + def __init__(self): + gr.top_block.__init__(self) + + parser = OptionParser(option_class=eng_option) + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm output device name. E.g., hw:0,0 or /dev/dsp") + parser.add_option("-r", "--sample-rate", type="eng_float", default=48000, + help="set sample rate to RATE (48000)") + (options, args) = parser.parse_args () + if len(args) != 0: + parser.print_help() + raise SystemExit, 1 + + sample_rate = int(options.sample_rate) + ampl = 0.1 + + src0 = gr.sig_source_f (sample_rate, gr.GR_SIN_WAVE, 350, ampl) + src1 = gr.sig_source_f (sample_rate, gr.GR_SIN_WAVE, 440, ampl) + dst = audio.sink (sample_rate, options.audio_output) + self.connect (src0, (dst, 0)) + self.connect (src1, (dst, 1)) + + +if __name__ == '__main__': + try: + my_top_block().run() + except KeyboardInterrupt: + pass diff --git a/gr-audio/examples/python/dial_tone_daemon.py b/gr-audio/examples/python/dial_tone_daemon.py new file mode 100755 index 000000000..d30d0e117 --- /dev/null +++ b/gr-audio/examples/python/dial_tone_daemon.py @@ -0,0 +1,57 @@ +#!/usr/bin/env python +# +# Copyright 2004,2005,2007,2008 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, gru +from gnuradio import audio +from gnuradio.eng_option import eng_option +from optparse import OptionParser +import os + +class my_top_block(gr.top_block): + + def __init__(self): + gr.top_block.__init__(self) + + parser = OptionParser(option_class=eng_option) + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm output device name. E.g., hw:0,0 or /dev/dsp") + parser.add_option("-r", "--sample-rate", type="eng_float", default=48000, + help="set sample rate to RATE (48000)") + (options, args) = parser.parse_args () + if len(args) != 0: + parser.print_help() + raise SystemExit, 1 + + sample_rate = int(options.sample_rate) + ampl = 0.1 + + src0 = gr.sig_source_f (sample_rate, gr.GR_SIN_WAVE, 350, ampl) + src1 = gr.sig_source_f (sample_rate, gr.GR_SIN_WAVE, 440, ampl) + dst = audio.sink (sample_rate, options.audio_output) + self.connect (src0, (dst, 0)) + self.connect (src1, (dst, 1)) + + +if __name__ == '__main__': + pid = gru.daemonize() + print "To stop this program, enter 'kill %d'" % pid + my_top_block().run() diff --git a/gr-audio/examples/python/dial_tone_wav.py b/gr-audio/examples/python/dial_tone_wav.py new file mode 100755 index 000000000..6e87b2a48 --- /dev/null +++ b/gr-audio/examples/python/dial_tone_wav.py @@ -0,0 +1,61 @@ +#!/usr/bin/env python +# +# Copyright 2004,2005,2007,2008 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +# GNU Radio example program to record a dial tone to a WAV file + +from gnuradio import gr +from gnuradio.eng_option import eng_option +from optparse import OptionParser + +class my_top_block(gr.top_block): + + def __init__(self): + gr.top_block.__init__(self) + + usage = "%prog: [options] filename" + parser = OptionParser(option_class=eng_option, usage=usage) + parser.add_option("-r", "--sample-rate", type="eng_float", default=48000, + help="set sample rate to RATE (48000)") + parser.add_option("-N", "--samples", type="eng_float", default=None, + help="number of samples to record") + (options, args) = parser.parse_args () + if len(args) != 1 or options.samples is None: + parser.print_help() + raise SystemExit, 1 + + sample_rate = int(options.sample_rate) + ampl = 0.1 + + src0 = gr.sig_source_f (sample_rate, gr.GR_SIN_WAVE, 350, ampl) + src1 = gr.sig_source_f (sample_rate, gr.GR_SIN_WAVE, 440, ampl) + head0 = gr.head(gr.sizeof_float, int(options.samples)) + head1 = gr.head(gr.sizeof_float, int(options.samples)) + dst = gr.wavfile_sink(args[0], 2, int(options.sample_rate), 16) + + self.connect(src0, head0, (dst, 0)) + self.connect(src1, head1, (dst, 1)) + +if __name__ == '__main__': + try: + my_top_block().run() + except KeyboardInterrupt: + pass diff --git a/gr-audio/examples/python/mono_tone.py b/gr-audio/examples/python/mono_tone.py new file mode 100755 index 000000000..869c2e5ff --- /dev/null +++ b/gr-audio/examples/python/mono_tone.py @@ -0,0 +1,66 @@ +#!/usr/bin/env python +# +# Copyright 2004,2005,2007 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr +from gnuradio import audio +from gnuradio.eng_option import eng_option +from optparse import OptionParser + +#import os +#print os.getpid() +#raw_input('Attach gdb and press Enter: ') + +class my_top_block(gr.top_block): + + def __init__(self): + gr.top_block.__init__(self) + + parser = OptionParser(option_class=eng_option) + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm output device name. E.g., hw:0,0 or /dev/dsp") + parser.add_option("-r", "--sample-rate", type="eng_float", default=48000, + help="set sample rate to RATE (48000)") + parser.add_option("-D", "--dont-block", action="store_false", default=True, + dest="ok_to_block") + + (options, args) = parser.parse_args () + if len(args) != 0: + parser.print_help() + raise SystemExit, 1 + + sample_rate = int(options.sample_rate) + ampl = 0.1 + + src0 = gr.sig_source_f (sample_rate, gr.GR_SIN_WAVE, 650, ampl) + + dst = audio.sink (sample_rate, + options.audio_output, + options.ok_to_block) + + self.connect (src0, (dst, 0)) + + +if __name__ == '__main__': + try: + my_top_block().run() + except KeyboardInterrupt: + pass diff --git a/gr-audio/examples/python/multi_tone.py b/gr-audio/examples/python/multi_tone.py new file mode 100755 index 000000000..7d47dd5d5 --- /dev/null +++ b/gr-audio/examples/python/multi_tone.py @@ -0,0 +1,90 @@ +#!/usr/bin/env python +# +# Copyright 2004,2006,2007 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr +from gnuradio import audio +from gnuradio.eng_option import eng_option +from optparse import OptionParser + +#import os +#print os.getpid() +#raw_input('Attach gdb and press Enter: ') + +class my_top_block(gr.top_block): + + def __init__(self): + gr.top_block.__init__(self) + + parser = OptionParser(option_class=eng_option) + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm output device name. E.g., hw:0,0 or /dev/dsp") + parser.add_option("-r", "--sample-rate", type="eng_float", default=48000, + help="set sample rate to RATE (48000)") + parser.add_option ("-m", "--max-channels", type="int", default="16", + help="set maximum channels to use") + parser.add_option("-D", "--dont-block", action="store_false", default=True, + dest="ok_to_block") + (options, args) = parser.parse_args () + if len(args) != 0: + parser.print_help() + raise SystemExit, 1 + + sample_rate = int(options.sample_rate) + limit_channels = options.max_channels + + ampl = 0.1 + + # With a tip of the hat to Harry Partch, may he R.I.P. + # See "Genesis of a Music". He was into some very wild tunings... + base = 392 + ratios = { 1 : 1.0, + 3 : 3.0/2, + 5 : 5.0/4, + 7 : 7.0/4, + 9 : 9.0/8, + 11 : 11.0/8 } + + # progression = (1, 5, 3, 7) + # progression = (1, 9, 3, 7) + # progression = (3, 7, 9, 11) + # progression = (7, 11, 1, 5) + progression = (7, 11, 1, 5, 9) + + dst = audio.sink (sample_rate, + options.audio_output, + options.ok_to_block) + + max_chan = dst.input_signature().max_streams() + if (max_chan == -1) or (max_chan > limit_channels): + max_chan = limit_channels + + for i in range (max_chan): + quo, rem = divmod (i, len (progression)) + freq = base * ratios[progression[rem]] * (quo + 1) + src = gr.sig_source_f (sample_rate, gr.GR_SIN_WAVE, freq, ampl) + self.connect (src, (dst, i)) + +if __name__ == '__main__': + try: + my_top_block().run() + except KeyboardInterrupt: + pass diff --git a/gr-audio/examples/python/noise.py b/gr-audio/examples/python/noise.py new file mode 100755 index 000000000..75f741082 --- /dev/null +++ b/gr-audio/examples/python/noise.py @@ -0,0 +1,55 @@ +#!/usr/bin/env python +# +# Copyright 2007 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr +from gnuradio import audio +from gnuradio.eng_option import eng_option +from optparse import OptionParser + +class my_top_block(gr.top_block): + + def __init__(self): + gr.top_block.__init__(self) + + parser = OptionParser(option_class=eng_option) + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm output device name. E.g., hw:0,0 or /dev/dsp") + parser.add_option("-r", "--sample-rate", type="eng_float", default=48000, + help="set sample rate to RATE (48000)") + (options, args) = parser.parse_args () + if len(args) != 0: + parser.print_help() + raise SystemExit, 1 + + sample_rate = int(options.sample_rate) + ampl = 0.1 + + src = gr.glfsr_source_b(32) # Pseudorandom noise source + b2f = gr.chunks_to_symbols_bf([ampl, -ampl], 1) + dst = audio.sink(sample_rate, options.audio_output) + self.connect(src, b2f, dst) + +if __name__ == '__main__': + try: + my_top_block().run() + except KeyboardInterrupt: + pass diff --git a/gr-audio/examples/python/spectrum_inversion.py b/gr-audio/examples/python/spectrum_inversion.py new file mode 100755 index 000000000..021e23f2d --- /dev/null +++ b/gr-audio/examples/python/spectrum_inversion.py @@ -0,0 +1,68 @@ +#!/usr/bin/env python +# +# Copyright 2004,2005,2007 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. + +# +# Gang - Here's a simple script that demonstrates spectrum inversion +# using the multiply by [1,-1] method (mixing with Nyquist frequency). +# Requires nothing but a sound card, and sounds just like listening +# to a SSB signal on the wrong sideband. +# + +from gnuradio import gr +from gnuradio import audio +from gnuradio.eng_option import eng_option +from optparse import OptionParser + +class my_top_block(gr.top_block): + + def __init__(self): + gr.top_block.__init__(self) + + parser = OptionParser(option_class=eng_option) + parser.add_option("-I", "--audio-input", type="string", default="", + help="pcm input device name. E.g., hw:0,0 or /dev/dsp") + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm output device name. E.g., hw:0,0 or /dev/dsp") + parser.add_option("-r", "--sample-rate", type="eng_float", default=8000, + help="set sample rate to RATE (8000)") + (options, args) = parser.parse_args () + if len(args) != 0: + parser.print_help() + raise SystemExit, 1 + + sample_rate = int(options.sample_rate) + src = audio.source (sample_rate, options.audio_input) + dst = audio.sink (sample_rate, options.audio_output) + + vec1 = [1, -1] + vsource = gr.vector_source_f(vec1, True) + multiply = gr.multiply_ff() + + self.connect(src, (multiply, 0)) + self.connect(vsource, (multiply, 1)) + self.connect(multiply, dst) + + +if __name__ == '__main__': + try: + my_top_block().run() + except KeyboardInterrupt: + pass diff --git a/gr-audio/examples/python/test_resampler.py b/gr-audio/examples/python/test_resampler.py new file mode 100755 index 000000000..4644c5e2f --- /dev/null +++ b/gr-audio/examples/python/test_resampler.py @@ -0,0 +1,66 @@ +#!/usr/bin/env python +# +# Copyright 2004,2005,2007 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, gru, blks2 +from gnuradio import audio +from gnuradio.eng_option import eng_option +from optparse import OptionParser + + +class my_top_block(gr.top_block): + + def __init__(self): + gr.top_block.__init__(self) + + parser = OptionParser(option_class=eng_option) + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm output device name. E.g., hw:0,0 or /dev/dsp") + parser.add_option("-i", "--input-rate", type="eng_float", default=8000, + help="set input sample rate to RATE (%default)") + parser.add_option("-o", "--output-rate", type="eng_float", default=48000, + help="set output sample rate to RATE (%default)") + (options, args) = parser.parse_args () + if len(args) != 0: + parser.print_help() + raise SystemExit, 1 + + input_rate = int(options.input_rate) + output_rate = int(options.output_rate) + + interp = gru.lcm(input_rate, output_rate) / input_rate + decim = gru.lcm(input_rate, output_rate) / output_rate + + print "interp =", interp + print "decim =", decim + + ampl = 0.1 + src0 = gr.sig_source_f (input_rate, gr.GR_SIN_WAVE, 650, ampl) + rr = blks2.rational_resampler_fff(interp, decim) + dst = audio.sink (output_rate, options.audio_output) + self.connect (src0, rr, (dst, 0)) + + +if __name__ == '__main__': + try: + my_top_block().run() + except KeyboardInterrupt: + pass |